1993061 has 4 divisors (see below), whose sum is σ = 2277792. Its totient is φ = 1708332.

The previous prime is 1993039. The next prime is 1993067. The reversal of 1993061 is 1603991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1603991 = 1021 ⋅1571.

It is a cyclic number.

It is not a de Polignac number, because 1993061 - 2¹⁸ = 1730917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142355 + ... + 142368.

It is an arithmetic number, because the mean of its divisors is an integer number (569448).

2^1993061 is an apocalyptic number.

It is an amenable number.

1993061 is a deficient number, since it is larger than the sum of its proper divisors (284731).

1993061 is an equidigital number, since it uses as much as digits as its factorization.

1993061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284730.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1993061 is about 1411.7581237592. The cubic root of 1993061 is about 125.8462262810.

It can be divided in two parts, 19930 and 61, that added together give a palindrome (19991).

The spelling of 1993061 in words is "one million, nine hundred ninety-three thousand, sixty-one".